698 search results - page 67 / 140 » Auditing SQL Queries |
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SIGMOD
2006
ACM
15 years 10 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
EDBT
2004
ACM
15 years 10 months ago
2004
ACM
The join operation, which combines tuples from multiple relations, is the most fundamental and, typically, the most expensive operation in database queries. The standard approach t...
ICDE
2009
IEEE
15 years 4 months ago
2009
IEEE
— A paramount challenge in probabilistic databases is the scalable computation of confidences of tuples in query results. This paper introduces an efficient secondary-storage o...
SIGMOD
2010
ACM
15 years 2 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
59
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SBBD
2007
14 years 11 months ago
2007
Integrating geographical and multidimensional processing has been proposed in several researches in the database literature. One of the most important issues of this process is dat...